Bilinear Models for Spatio-Temporal Point Distribution Analysis

  • Authors:
  • Corné Hoogendoorn;Federico M. Sukno;Sebastián Ordás;Alejandro F. Frangi

  • Affiliations:
  • Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain and Center for Computational Imaging and Simulation Technologies in Biomedicine ...;Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain and Center for Computational Imaging and Simulation Technologies in Biomedicine ...;Center for Computational Imaging and Simulation Technologies in Biomedicine (CISTIB), Department of Information and Communication Technologies, Universitat Pompeu Fabra, Barcelona, Spain 08018;Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain and Center for Computational Imaging and Simulation Technologies in Biomedicine ...

  • Venue:
  • International Journal of Computer Vision
  • Year:
  • 2009

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Abstract

In this work we describe the usage of bilinear statistical models as a means of factoring the shape variability into two components attributed to inter-subject variation and to the intrinsic dynamics of the human heart. We show that it is feasible to reconstruct the shape of the heart at discrete points in the cardiac cycle. Provided we are given a small number of shape instances representing the same heart at different points in the same cycle, we can use the bilinear model to establish this.Using a temporal and a spatial alignment step in the preprocessing of the shapes, around half of the reconstruction errors were on the order of the axial image resolution of 2 mm, and over 90% was within 3.5 mm. From this, we conclude that the dynamics were indeed separated from the inter-subject variability in our dataset.